5 sports that increase muscle mass

BODYBUILDING: The gym is king when it comes to mass gains, as its purpose is precisely that: to build muscle. A well-designed routine, combined with diet and rest, will help you shape your body to your liking. Recommended for all ages.

CROSSFIT: Marvelous body in record time... combines the best of weight training, calisthenics, and cardiovascular training, so 1 hour a day, 3 or 4 days a week will be enough for spectacular results. One drawback: It's quite harmful, and you have to be careful after a certain age.

SURFING: Anyone who surfs will know that few sports are as complete... strength, coordination, agility and a huge calorie burn... but it's worth it, few sports manage to shape the body like this one.

CALISTHENICS: Working your body with your own body weight can be an equally effective alternative to the gym, provided you're disciplined and push your body to the limit. Nowadays, it's easy to find calisthenics spaces in many city parks. You'll burn through push-ups and pull-ups, but you'll soon notice you've never felt stronger.

BOXING: A genuine fat burner that, far from leaving you feeling "flabby," will help you build a magazine-cover-worthy upper body. Chest, shoulders, back, arms... and if you don't forget a good leg routine, you'll be surprised to see what body you've been hiding underneath.